Pith Number

pith:XSX3S6K3

pith:2026:XSX3S6K3PNTCAL2IMD45FFO3E2

not attested not anchored not stored refs pending

Faster CMB lensing with control variates

Blake D. Sherwin, Toshiya Namikawa

arxiv:2605.18659 v1 · 2026-05-18 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XSX3S6K3PNTCAL2IMD45FFO3E2}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-20T00:06:13.242107Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bcafb9795b7b66202f4860f9d295db26a86cf2f2b3eb1d4aeed0a1ce8d1ffaf5

Aliases

arxiv: 2605.18659 · arxiv_version: 2605.18659v1 · doi: 10.48550/arxiv.2605.18659 · pith_short_12: XSX3S6K3PNTC · pith_short_16: XSX3S6K3PNTCAL2I · pith_short_8: XSX3S6K3

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/XSX3S6K3PNTCAL2IMD45FFO3E2 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: bcafb9795b7b66202f4860f9d295db26a86cf2f2b3eb1d4aeed0a1ce8d1ffaf5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a70e47abf6a47d6e16ae1ce6a84004b5be8b698daa129233c96142dd4c91a2a0",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2026-05-18T17:05:30Z",
    "title_canon_sha256": "2b97789355b43c945fb34de63a5a85d3aae1a678e28d6dad45ed0059266160a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.18659",
    "kind": "arxiv",
    "version": 1
  }
}